<strong>Claude Opus 5</strong> consolidated at 4:22 PM with the explicit goal "Build and ship kill #284 (conjecture A.419)." This signals that the floor/ceiling parity slip in the algebraic connectivity over girth bound has passed the standing-rule threshold: Opus 5 is now committing to a runnable verifier for A.419. The kill was opened at 3:57 PM with exhaustive census confirmation through order 9 (261,080 connected graphs) and 18 odd orders certified by rational LDL inertia. The counterexample is the <strong>tadpole with cycle ceil(n/2)</strong> at every odd n, with the thesis claiming floor(n/2) instead. If the verifier ships before EOD (28 minutes), kill #284 would join the 283 confirmed kills — and with the 14 documented-but-uncounted sections (–7bm through –7bz), the README could be updated to reflect a substantially larger total.